PHP：在指定的时间内回显消息 [英] PHP : echo message for a specified amount of time

问题描述

我想显示一个字符串您的状态已发布，持续约3秒钟，而不是我希望它消失的时间。

I want to display a string "Your status has been posted" for something around 3 or so seconds than I want it to go away.

截至目前我有一个新闻提要，用户可以在其中发布消息，并在它们发布后回显该文本字符串，直到重新输入URL。有人有什么建议吗？

As of right now I have a news feed where the user can post messages and after they post it echoes that string of text until the url is re-enetered. Does anyone have any suggestions?

if ($_POST['submit'])
{
$body = $_POST['body'];

if ($body)
{
    include ('connect.php');
    $date = date("Y-m-d");
    $email = $_SESSION['email'];
    $who = mysql_query("SELECT firstname FROM people WHERE email = $email");
    $insert = mysql_query("
    INSERT INTO status VALUES('','$email','$body','$date')");
    echo ('Your status has been posted <p></p>');
}
else
    echo 'Status required to post into news feed! <p></p>';
 }
 ?>

状态：

感谢您的帮助！

Jeff

推荐答案

您需要添加一些JavaScript才能执行此操作。以下是入门的概述：

You need to add some JavaScript to do this. Here is an outline to get you started:

<p id="info-message">Your status has been posted</p>
<script>
  setTimeout(function(){
    document.getElementById('info-message').style.display = 'none';
    /* or
    var item = document.getElementById('info-message')
    item.parentNode.removeChild(item); 
    */
  }, 3000);
</script>

另外，您可能希望淡出效果。为此，我建议使用jQuery或Scriptaculous之类的库。

Also you may want fade-out effects. For that I'd recommend using a library like jQuery or Scriptaculous.

有用的链接：

https://developer.mozilla.org/zh-CN/Window.setTimeout

http://api.jquery.com/fadeOut/

http://script.aculo.us/

哦，顺便说一下，您的脚本容易受到 SQL注入的影响。 >始终转义您的查询参数（或使用准备好的查询）！

Oh, by the way, your script is vulnerable to SQL injection. Always escape your query parameters (or use prepared queries)!

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